Home / 35,987.21-49,662.43-20,072.68

Finding the Fourth Proportional to 35,987.21, 49,662.43 and 20,072.68

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Solution

The fourth proportional to 35,987.21, 49,662.43 and 20,072.68 is: 27,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.21 : 49,662.43 = 20,072.68 : x
  2. Step 2: Convert to fraction form
    35,987.21/49,662.43 = 20,072.68/x
  3. Step 3: Cross multiply
    35,987.21x = 49,662.43 × 20,072.68
  4. Step 4: Simplify right side
    35,987.21x = 996,858,065.41
  5. Step 5: Solve for x
    x = 996,858,065.41/35,987.21
  6. Step 6: Final answer
    x = 27,700.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.